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On the equator at the at the vernal equinox, at noon a straight stick driven vertically in to the ground casts no shadow. What is the percent difference in the lengths of it's shadow measured at 1:45...

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Use the Distance Formula and the x-axis of the coordinate plane. Show why the distance between two points on a number line (the x-axis) is | a – b |, where a and b are the x-coordinates of the points...